An Assessment of the Metallic Iron Content from Metallurgical Wastes - Essential Factor for Sustainable Development in the Steelmaking Industry
| Autor: | Ioana Monica Sas Boca, Dana-Adriana Iluţiu-Varvara, Marius Tintelecan, Carmen Maria Mârza, F. Domniţa |
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| Rok vydání: | 2017 |
| Předmět: |
Basic oxygen steelmaking
Materials science Waste management business.industry 010401 analytical chemistry Metallurgy Magnetic separation Ferroalloy Slag Scrap General Medicine 010501 environmental sciences Raw material engineering.material 01 natural sciences Steelmaking 0104 chemical sciences Iron ore visual_art visual_art.visual_art_medium engineering business 0105 earth and related environmental sciences |
| Zdroj: | Procedia Engineering. 181:357-362 |
| ISSN: | 1877-7058 |
| DOI: | 10.1016/j.proeng.2017.02.401 |
| Popis: | The paper presents an assessment of the metallic iron content from metallurgical wastes (slag dump) and from the dust (resulted from steelmaking in the electric arc furnaces). The determination of total and metallic iron in the metallurgical wastes samples was achieved by spectroscopic methods. The device used was a spectrometer based on X-ray fluorescence. The metallic iron content from the analyzed metallurgical wastes samples varies according to: the composition and the quality of the raw materials (old scrap and metallic wastes) used in the steelmaking process, the auxiliary materials used in the steelmaking process (oxidants (iron ore), ferroalloys (FeNi, FeCr, FeSi, FeMn, FeMo, FeTi, FeV, FeAl)) and the type of steel produced. The results show that the metallurgical wastes from slag dump are a significant source of metallic iron. The recovery of the metallic iron (by magnetic separation), followed by its use as a raw material to the steelmaking, leads to a sustainable development in the steelmaking industry. |
| Databáze: | OpenAIRE |
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